I jailbroke my iPhone 4S with Absinte 2.0 yesterday. I downloaded a Cydia app called Folders in folder and it caused my phone to be stuck in boot loops for hours. When it came back on, I deleted the app and everything worked fine.
So today my mom took the phone to geek squad for them to help her with something called lock and wipe. Anyway, they did something trying to remove the jailbreak and got it stuck in a boot loop again. Anyone have any suggestions on how to fix it?